2521273 has 2 divisors, whose sum is σ = 2521274. Its totient is φ = 2521272.

The previous prime is 2521271. The next prime is 2521297. The reversal of 2521273 is 3721252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2518569 + 2704 = 1587^2 + 52^2 .

It is a cyclic number.

It is not a de Polignac number, because 2521273 - 2¹ = 2521271 is a prime.

Together with 2521271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2521271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260636 + 1260637.

It is an arithmetic number, because the mean of its divisors is an integer number (1260637).

2^2521273 is an apocalyptic number.

It is an amenable number.

2521273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521273 is an equidigital number, since it uses as much as digits as its factorization.

2521273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 22.

The square root of 2521273 is about 1587.8516933266. The cubic root of 2521273 is about 136.1047527719.

The spelling of 2521273 in words is "two million, five hundred twenty-one thousand, two hundred seventy-three".